Your gonna end up with a bunch of Amlogic, Allwinner & Rockchip boards with little to no software support unless you get a bunch of H3 based Allwinner boards. Most of what is out there is nothing to write home about, the decent stuff (eg. OrangePi PC) is either pure luck, or browbeating by the community (OrangePi+ 2e) with the occasional vendor like FriendlyARM coming in using SOCs that the community mainlined support for.

Then you have incompetent vendors like Olimex, Pine64, Next Thing Co (of C.H.I.P., the "$9" SBC) that fuck up the hardware, software, or both, and forget critical stuff like heat spreading copper layers in the SBC (Olimex), misroute ethernet so it can't actually do a gigabit a sec (Pine64), or lie about SOC software support and scramble to port the closed blobs that make their board work forward (Next Thing Co).